Amelia Bedelia's friend Rose is having a slumber party. It's Amelia Bedelia's first sleepover, and she's confused. Isn't sleeping boring? Luckily, all the girls in Amelia Bedelia's class are there, and the party is the exact opposite of boring. There are pizzas to eat, games to play, and fingernail polish in all the colors of the rainbow to admire. And when it is time to go to sleep, well, something unexpected happens then, too.